Insecticide sprayer



y 1937. I H. HILTS 2,080,864

INSECTIC IDE SPRAYER Filed June 7, 1935 Patented May 18, 1937INSECTICIDE srmnnm Harold Capron Hilts, Honolulu, Territory of HawaiiApplication June 7, 1935, Serial No. 25,501

9 Claims.

The invention relates to insecticide sprayers and more particularly tosprayers for supplying insecticide and the like in the form of powder.In devices of this character simplicity of construction, economy ofmanufacturing costs and certainty of operation contribute to theproduction of a commercially saleable article, and it is accordingly theprimary object of the invention to produce a powder duster in which allof the above desirable qualities are combined.

The invention will be more readily understood,

:by reference to the accompanying drawing and the further detaileddescription in which are set forth specific embodiments which areintended as illustrative of the inventive thought rather than aslimiting the invention to the precise details herein set forth.

In the drawing,

Fig. 1 is a central vertical section through the cone-shaped dispenser;

Fig. 2 is a similar view showing powder being forced out of the apex ofthe dispenser;

Fig. 3 is a transverse section on line 3-3 of Fig. 2, and

Fig. 4 is a fragmentary detail view of a modification showing a portionof the dispensing tube, the socket in which it fits and a leaf springfor forcing the tube away from the base of the container.

Referring specifically to the drawing, the reference numeral I0 denotesa cone-shaped container having flexible resilient Walls composed of anysuitable material, as for example, rubberized paper. This material isstrong and inexpensive as well as flexible and resilient, andaccordingly is very suitable for the purposes of the present invention.The surface of this wall is preferably slightly roughened to prevent thecontainer from slipping through the hand of the user. The rubberizing ofthe paper renders the container water-proof. Obviously other materialsmay be employed, as for example, parchmentized paper, rubberized clothand the like. At or adjacent the apex of the container is provided oneor more small apertures H. As shown, the opening H is formed by tearingoff or snipping off the extreme apex of the container when the device isto be used. By leaving the top closed leakage of powder is avoidedduring shipment and until the article is placed in operation.

A substantially rigid plate [2 serves as a base for the container andmay be secured to the flexible side walls by rolling over or beading.This base is preferably of metal, as for example,

tin plate, and should be such as to withstand the corrosive action ofchemicals which may be employed for insecticide purposes. A socket I3 isprovided at the center of the base plate and is preferably rigidtherewith. The socket may be secured to the base plate by soldering.Extending fromnear the base to the apex of the container is a rigidperforated tube 14 of substantially uniform diameter through the majorportion of its length, this tube being provided with a plurality ofsmall openings or apertures IE to permit insecticide; preferably in theform of powder, to enter the tube.

According to my invention, means are provided for urging the tube awayfrom the base and toward the apex, and as shown in Figs. 1, 2 and 3, ahelical spring I6 is secured to the lower end of the tube and reactsagainst the base plate so as to urge the tube upwardly, the socket i3serving as a guide. At the upper end of the tube I4 is carried a rigidconical collar ll preferably secured to the upper end of the tube so asto be rigid therewith. This collar rests inside the apex of thecone-shaped container and prevents the perforated tube from being forcedthrough the apex by reason of the pressure of the spring I6. The collarfurther serves to provide a support for the apex of the container andprevents the container from collapsing at the upper portion thereof, sothat the aperture or apertures H are always open. It will be furthernoted that the collar, forced into position by the spring I6, holds theresilient wall of the container taut and lends resilience thereto sothat when the sides are pressed inwardly, as indicated by the arrows inFig. 2, the wall, on being released, will immediately return to itsoriginal shape.

In the modification disclosed in Fig. 4 a leaf spring 16 is secured tothe base plate l2 and a socket I3 is carried by the leaf spring. Thelower end of the tube 14' fits into this base and toward the apex in thesame manner as has been described in conjunction with the firstembodiment of the invention.

It will also be apparent that the spring may be secured to the lower endof the tube instead of to the base, in which case the socket may beomitted, although such construction is not as desirable as the two formsillustrated for the reason that the lower end of the tube will not bemaintained in a central position with reference to the base.

It will be obvious that other modifications of the invention may beresorted to within the scope of the invention and without departing fromthe inventive thought.

What I claim is:

1. An insecticide duster comprising a container having a rigid base anda flexible resilient conical wall apertured at the apex thereof, asocket centrally mounted on said base plate, a rigid perforated tubehaving a conical collar at one end thereof fitting into said wall at theapex and fittin into said socket at the other end, and a spring reactingbetween said base plate and said tube to force said conical collar intothe apex of said container.

2. A sprayer comprising a container having resilient walls with anoutlet opening therein and a rigid base, a perforated tube extendinglengthwise through said container, and resilient means urging one end ofthe tube into registry with said outlet opening. I

3. An insecticide sprayer comprising a container having a conicalresilient wall with an outletopening at the apex thereof and a rigidbase, a rigid perforated dispensing tube having a conical collar at oneend thereof adapted to fit into the outlet end of said wall andresilient means reaotingbetween the base and said tube.

4. A sprayer as set forth in claim 3 wherein a guide socket is providedfor the end of the tube opposite said collar.

5. A sprayer as set forth in claim 3 whereinthe resilient reacting meanscomprises a helical spring secured to the tube.

6. A sprayer as set forth in claim 3 wherein the resilient meanscomprises a U-shaped leaf spring having one arm thereof secured to saidbase, while the other arm carries a socket in which the lower end of theperforated tube is adapted to fit.

7. An insecticide sprayer comprising a container having a resilientconical wall with an aperture at the apex and a rigid base, a perforatedtube extending substantially from the base to said apex and havinganppening registering with the opening in said conioalwall, and a rigidconical collar secured to said tube at the outlet end thereof to providesupport for the apex of the container.

' 8. An insecticide sprayer as set forth in claim 7 wherein resilientmeans are provided for urging said tube toward the apex of thecontainer.

9. A conical-shaped container comprising flexible sides, a dischargeopening at one end and a solid base at the other, a tube in alignmentwith said discharge opening and having apertures formed therein, with aconical shield atits upper end, the sides of said shield being in closecontact with the inner wall of said container, the upper end of saidtube being below the discharge opening of the container forming achamber between the shield and the discharge'opening, resilient meanssupported by saidbase in contact with the lower end of said tube, saidflexible sides of the container being adapted to force the contents ofsaid container into said tube through said apertures and in turn outthrough said discharge opening upon pressure being exerted upon thesides.

HAROLD CAPRON HILTS.

